I have a bank account since 3 years but I am barely using it..
Fully agree with you, card payments are now much wider accepted than before.
Lazada, Grab can easily paid with card
And not everybody needs cash money, imagine some people don’t eat street food all day or use public transportation. Can’t remember the last time I withdrew money
Official rules say no… but I understand you can’t leave your babies without watering for long time 🤣
I think there won’t be an issue if you choose an embassy like Vietnam which basically pretty much never invites anyone for an interview. I’d just make sure to get evidence(photos outside hotel, …) of your stay just in case they really should ask for additional documentation